Question on hypothesis testing of proportion

Assignment Help Basic Statistics

Reference no: EM13109569

Please solve the exercise below and show your work in Excel (and formulas).

In an early study, researchers at an Ivy University found that 33% of the freshmen had received at least one A in their first semester. Administrators are concerned that grade inflation has caused this percentage to increase. In a more recent study, of a random sample of 500 freshmen, 185 had at least one A in their first semester Calculate the appropriate test statistic to test the hypotheses related to the concern and test at 5% and 1%.

Reference no: EM13109569

Questions Cloud

Interpretation of the decision : A hospital human resources manager finds that the local average starting salary for nurses is $24,000. She randomly samples 10 nurse's salaries at the hospital and calculates a mean of $23,450 and a standard deviation of $400.

Explain payments are made at the end of each month : A 15-year annuity pays 1,500 dollars per month as well as payments are made at the end of each month. If interest rate is 15% compound monthly for first seven years as well as 12% compound monthly afterward

Production schedule to produce exact production requirements : Develop a production schedule to produce the exact production requirements by varying the workforce size for the following problem.

Explain rainbow contractors to build and paint a bridge : If Valley Bridge agreements with Rainbow Contractors to build and paint a bridge and the contract specifies that Sherwin Williams paint will be used then Sherwin Williams

Question on hypothesis testing of proportion : In an early study, researchers at an Ivy University found that 33% of the freshmen had received at least one A in their first semester.

What are certain brands that you believe have high brand : What are certain brands that you believe have high brand equity? What are few of the elements of these recognizable brands?

Writing null and research hypotheses : Sixteen juvenile rats were treated with the drug Naloxone (pairs 1,3,7,8) or, as a placebo control, Saline (pairs 2,4,5,6) and then observed for their play and non-play behavior in an open field for 1.5 minutes.

An implementation plan for the new production process design : An implementation plan for the new production process design as well as supply chain for the Riordan electric fans including a Gantt chart of the implementation plan.

Use the vlookup function to choice the outcome : Use the VLOOKUP function to choice the outcome for each die. Place the number for the first die in column B as well as the number for the second die in column C

User Account

All Pages